5-stage transformer, for fans, 230 V/50 Hz. Supplied = assembled. Mains voltage = 230 V/50 Hz. Colour = light grey. Number of speed settings = 5 pcs. Product type = industrial fans. Reduces the speed and power of fans controlled by transformers in 5 stages. Suitable for all summer fans with protection type IP44. Protection type IP54 for wall mounting. With operation indicator light. Allows fine adjustment of a fan. With safety socket adapter plug and socket, protection type IP54, max. load 1.0 A. Max. ambient temperature up to 35 °C. Length x width x height 160 x 84 x 88 mm.